I've added an addendum relating to the containment breach event described in the scp, pertaining to a poison developed by the organism as a foil to its weakness to flame throwers. Critique would appreciated. thank you

I moved your thread description to the first post and trimmed it above, OP, since it was taking up a lot of space on the forum listing. Try to keep thread descriptions under 7 lines so you don't visually crowd out other people's threads. ~Zyn

I originally thought to tie the grass's anomalous origins directly to the song in some way, but I decided that was a bit silly.

Having the song as the origin point would be more intriguing than having nothing at all.

Who made the grass? Was it meant to be the way it is now? Does the grass have a purpose? Has that purpose been fulfilled?

Just "[x] that [kills/maims/eats] people" as a concept generally doesn't work out too well, given how many dangerous SCP objects we've already got on the site. If you want to make this work, it'd help the narrative a lot if there was a reason why this thing exists and does what it does.